Troponin I is a protein released into the blood when the heart muscle is damaged. It is one of the most sensitive markers for detecting heart injury.
Category: Cardiac Markers
Also known as: troponin i, tnni, tni, cardiac troponin i, ctni, hs-tni
Reference range: 0–0.04 ng/mL (Source: ABIM)
Standard unit: ng/mL
High values may indicate
High troponin I levels may indicate heart attack (myocardial infarction), myocarditis, heart failure, pulmonary embolism, or other cardiac injury.
Low values may indicate
Low or undetectable troponin I levels are normal and suggest no significant heart muscle damage.
Source: MedlinePlus, U.S. National Library of Medicine
Track your Troponin I over time with BloodId